import axios from "axios";
import { Notification, MessageBox, Message } from "element-ui";
import store from "@/store";
import { getToken, removeToken } from "@/utils/auth";
import errorCode from "@/utils/errorCode";

// 是否显示登录过期
export let isRelogin = { show: false };

axios.defaults.headers["Content-Type"] = "application/json;charset=utf-8";
// 创建axios实例
const service = axios.create({
	// axios中请求配置有baseURL选项，表示请求URL公共部分
	baseURL: process.env.VUE_APP_BASE_API,
	// 超时
	timeout: 10000,
});
// request拦截器
service.interceptors.request.use(
	(config) => {
		// 是否需要设置 token
		const isToken = (config.headers || {}).isToken === false;
		if (getToken() && !isToken) {
			config.headers["Authorization"] = "Bearer " + getToken(); // 让每个请求携带自定义token 请根据实际情况自行修改
		}
		// get请求映射params参数
		if (config.method === "get" && config.params) {
			let url = config.url + "?";
			for (const propName of Object.keys(config.params)) {
				const value = config.params[propName];
				var part = encodeURIComponent(propName) + "=";
				if (value !== null && typeof value !== "undefined") {
					if (typeof value === "object") {
						for (const key of Object.keys(value)) {
							let params = propName + "[" + key + "]";
							var subPart = encodeURIComponent(params) + "=";
							url += subPart + encodeURIComponent(value[key]) + "&";
						}
					} else {
						url += part + encodeURIComponent(value) + "&";
					}
				}
			}
			url = url.slice(0, -1);
			config.params = {};
			config.url = url;
		}
		return config;
	},
	(error) => {
		console.log(error);
		Promise.reject(error);
	}
);

// 响应拦截器
service.interceptors.response.use(
	(res) => {
		// 未设置状态码则默认成功状态
		const code = res.data.code || 200;
		// 获取错误信息
		const msg = errorCode[code] || res.data.msg || errorCode["default"];
		if (code === 401) {
			if (!isRelogin.show) {
				isRelogin.show = true;
				MessageBox.confirm("登录状态已过期，请重新登录", "系统提示", {
					confirmButtonText: "确定",
					showCancelButton: false,
					closeOnClickModal: false,
					closeOnPressEscape: false,
					showClose: false,
					type: "warning",
				}).then(() => {
					isRelogin.show = false;
					store.dispatch("FedLogOut");
				});
			}
			return Promise.reject("无效的会话，或者会话已过期，请重新登录。");
		} else if (code === 500) {
			Message({
				message: msg,
				type: "error",
			});
			return Promise.reject(new Error(msg));
		} else if (code !== 200) {
			Notification.error({
				title: msg,
			});
			return Promise.reject("error");
		} else {
			return res.data;
		}
	},
	(error) => {
		console.log("err" + error);
		let { message } = error;
		let code = message.substr(message.length - 3);
		if (code == 403) {
			if (!isRelogin.show) {
				isRelogin.show = true;
				MessageBox.confirm("登录状态已过期，请重新登录", "系统提示", {
					confirmButtonText: "确定",
					showCancelButton: false,
					closeOnClickModal: false,
					closeOnPressEscape: false,
					showClose: false,
					type: "warning",
				}).then(() => {
					isRelogin.show = false;
					store.dispatch("FedLogOut");
				});
			}
			return Promise.reject("无效的会话，或者会话已过期，请重新登录。");
		} else if (message == "Network Error") {
			message = "后端接口连接异常";
		} else if (message.includes("timeout")) {
			message = "系统接口请求超时";
		} else if (message.includes("Request failed with status code")) {
			message = "系统接口" + message.substr(message.length - 3) + "异常";
		}
		Message({
			message: message,
			type: "error",
			duration: 5 * 1000,
		});
		return Promise.reject(error);
	}
);

export default service;
